Method for controlling radio resource allocation in mobile communication system

ABSTRACT

In a wireless mobile communications system, a method for controlling a radio resource allocation is provided. A network transmits access control information to a terminal such that a request for the radio resource allocation which will be transmitted from the terminal can be controlled. The terminal selectively transmits the request for the radio resource allocation based on the received information, thus a transmission of an unnecessary request for the radio resource can be minimized, thereby preventing a waste of the radio resource.

TECHNICAL FIELD

The present invention relates to a method for controlling a radioresource allocation in an E-UMTS (Evolved Universal MobileTelecommunications System) and, more particularly, a network transmitsaccess control information to a terminal such that a request for theradio resource allocation which will be transmitted from the terminalcan be controlled, the terminal selectively transmits the request forthe radio resource allocation based on the received information, as sucha transmission of an unnecessary request for the radio resource can beminimized and the radio resources can be more effectively utilized.

BACKGROUND ART

FIG. 1 is a network structure of the E-UMTS, a mobile communicationsystem applicable to the related art and the present disclosure.

The E-UMTS system has been evolved from the UMTS system, for which the3GPP is proceeding with the preparation of the basic specificationsapplicable thereto. The E-UMTS system can be classified as an LTE (LongTerm Evolution) system.

With reference to FIG. 1, the E-UMTS network is divided into an E-UTRANand a CN (Core Network). The E-UTRAN includes a terminal (UE (UserEquipment)), a base station (eNB or eNode B) and an AG (Access Gateway)(which also can be expressed as ‘MME/S-GW’). The AG can be divided intoa part for handling user traffic and a part for handling controltraffic. The AG part for handling new user traffic and the AG part forhandling control traffic can communicate with each other via newlydefined interface. One or more cells may exist in a single eNode B(eNB), and an interface for transmitting the user traffic and thecontrol traffic can be used between the eNode Bs.

The CN may include an AG, a node for user registration of the UE, andthe like. Also, in the UMTS of FIG. 1, an interface for discriminatingthe E-UTRAN and the CN can be used. An S1 interface can connect aplurality of nodes (i.e., in a many-to-many manner) between the eNode Band the AG. The eNode Bs are connected with each other through an X2interface, and the X2 interface is always present between adjacent eNodeBs in a meshed network structure.

Layers of a radio interface protocol between the UE and a network can bedivided into a first layer (L1), a second layer (L2) and a third layer(L3) based upon the three lower layers of an open system interconnection(OSI) standard model that is well-known in the art of communicationsystems.

The first layer (L1) provides an information transfer service using aphysical channel, and a radio resource control (RRC) layer positioned atthe third layer (L3) serves to control radio resources between theterminal and the network, for which the RRC layer exchanges an RRCmessage between the terminal and the network. The RRC layer can bedistributed so as to be positioned in network nodes such as the eNode Bsand the AGs, etc., or can be positioned only in the eNode Bs or in theAGs.

FIG. 2 illustrates a structure of the radio access interface protocolbetween the terminal and the UTRAN based upon various 3GPP wirelessaccess network standards.

The radio access interface protocol has horizontal layers including aphysical layer, a data link layer and a network layer, and has verticalplanes including a user plane for transmitting data information and acontrol plane for transmitting control signals.

The protocol layers can be divided into a first layer (L1), a secondlayer (L2) and a third layer (L3) based upon the three lower layers ofan open system interconnection (OSI) standard model that is well-knownin the art of communication systems. Each layer of the control plane ofthe radio protocol in FIG. 2 and the user plane of the radio protocol inFIG. 3 will now be described.

The physical layer, the first layer, provides an informationtransmission service to an upper layer by using a physical channel. Thephysical layer is connected with a medium access control (MAC) layerlocated at a higher level through a transport channel, and data betweenthe MAC layer and the physical layer is transferred via the transportchannel. Between different physical layers, namely, between physicallayers of a transmission side and a reception side, data is transferredvia the physical channel.

The MAC layer of the second layer provides a service to a radio linkcontrol (RLC) layer, an upper layer, via a logical channel. The RLClayer of the second layer reliably supports a data transmission. Thefunction of the RLC layer can be implemented as a function block withinthe MAC layer, and in this case, the RLC layer may not be present. APDCP layer of the second layer performs a header compression functionfor reducing unnecessary control information so that data transmitted byusing IP packets such as IPv4 or IPv6 can be effectively transmitted viaa radio interface with a relatively small bandwidth.

A radio resource control (RRC) layer located at the lowest portion ofthe third layer (L3) is only defined in the control plane and controlslogical channels, transport channels and the physical channels inrelation to the configuration, reconfiguration, and release of the radiobearers (RBs). Here, the RB signifies a service provided by the secondlayer (L2) for data transmission between the terminal and the UTRAN.

Downlink transport channels for transmitting data from the network tothe terminal, include a broadcast channel (BCH) for transmitting systeminformation and a downlink shared channel (SCH) for transmitting theuser traffic or the control message. Downlink multicast, traffic of abroadcast service or a control message can be transmitted through thedownlink SCH or through a separate downlink multicast channel (MCH).

Uplink transport channels for transmitting data from the terminal to thenetwork include a random access channel (RACH) for transmitting aninitial control message and an uplink SCH for transmitting the usertraffic and the control message.

A RRC connection and a signaling connection will be described in moredetail as follows. In order to perform communications, a terminal (UE)needs to have a RRC connection with the UTRAN and a signaling connectionwith the Core Network (CN). The terminal transmits and/or receives aterminal's control information with the UTRAN or the CN via the RRCconnection and the signaling connection.

In E-UMTS system, radio resource(s) of in a cell is allocated for anuplink radio resource(s) and a downlink radio resource(s). The basestation (eNode B) is in charge of controlling or allocating of theuplink and downlink radio resource(s). Namely, the base station decideswhich terminal can use which or how much radio resource(s) for whichparticular time period(s). After such determination is made, the basestation transmits those information to a corresponding terminal so thatthe terminal can perforin the uplink or downlink transmission accordingto the information.

In conventional art, the terminal continuously uses the radioresource(s) in a connected mode. However, in recent years, there aremany service based on an IP (Internet Protocol) packet, and continuouslyusing of the radio resource(s) in the connected mode may cause adrawback because these IP packet based service does not alwayscommunicates packet(s) all the time, rather there are many periods thatpackets are not communicated even in the connected mode. As such,continuously allocating and using of the radio resource(s) for wholetime period in a connected mode may be ineffective and undesirable.

In order to solve this drawback, the radio resource(s) may be allocatedonly when there is service data to be communicated. As such, toeffectively utilize the radio resource, the base station must know atype of data each user wants to transmit or receive. In general, thebase may possibly know an amount of data which will be transmitted indownlink, as the amount of downlink data is transferred from the accessgateway. However, for an uplink data, if the terminal does not notify anamount of uplink data to the base station, the base station can notestimate a radio resource for transmitting the uplink data by theterminal. Accordingly, in order to allocate radio resource(s) ineffective manner, the terminal needs to provide information related toradio resource scheduling to the base station. If the terminal has somedata to be transmitted to the base station, the terminal should sendsome message or notification to the base station, then the base stationprovide a resource allocation message to the terminal based the radioresource scheduling information included in a radio resource allocationrequest message. Here, the base station checks a priority of theterminals and their data priority. After checking these priorities, thebase station may determine the amount of radio resource(s) and transmita radio resource allocation message to the terminal.

There are many terminals existing in a cell. Because of a limited radioresource(s) in the cell, the base station sometimes can not provide theradio resource(s) to all terminals that request the radio resource(s).When the radio resource(s) is not available or not enough within thecell, if the terminal transmits a radio resource allocation requestmessage to the base station, such request message would not be necessaryand this even causes a waste of uplink radio resource.

DISCLOSURE OF INVENTION Technical Solution

The present invention has been developed in order to solve the abovedescribed problems of the related art. As a result, the presentinvention may provide a method for controlling a radio resourceallocation in an improved or effective manner such that a waste of theradio resource can be minimized.

To implement at least the above feature in whole or in parts, thepresent invention may provide a method of receiving a radio resourceallocation in a wireless communications system, the method comprising:receiving, from a network, information that controls a request for theradio resource allocation by a terminal; and determining whether or notto transmit the request for the radio resource allocation to the networkbased on the received information, wherein the information is receivedvia at least one of system control information, a RRC message and aterminal dedicated message, the information is received with controlinformation for a RACH (Random Access Channel) channel, and theinformation includes at least one of radio bearer information, call typeinformation, service type information, priority information, timeinformation and timer setting value.

The present invention may also provide a method of providing a radioresource allocation in a wireless communications system, the methodcomprising: transmitting access control information to a terminal,wherein the access control information is used to control a request forthe radio resource allocation by the terminal; receiving the request ofthe radio resource allocation from the terminal when the terminal isallowed to transmit the request for the radio resource allocation basedon the access control information; and transmitting the radio resourceallocation to the terminal, wherein the access control information istransmitted through at least one of system control information, a RRCmessage and a terminal dedicated message, and the access controlinformation includes at least one of radio bearer information, call typeinformation, service type information, priority information, timeinformation and timer setting value.

The present invention may also provide a method of allocating a radioresource in a wireless communications system, the method comprising:receiving a request for a radio resource allocation from a terminal;determining an available radio resource within one or more cells managedby a network; and transmitting a radio resource allocation rejectmessage to the terminal when the radio resource is determined to be notenough for supporting a radio resource which will be used by theterminal, wherein the radio resource allocation reject message includesat least one of a radio resource allocation request timeout, priorityinformation and a timer setting value.

The present invention may also provide a mobile terminal for receiving aradio resource allocation in a wireless communications system, themobile terminal comprising: a radio protocol adapted to receiveinformation for controlling a request for the radio resource allocationand to determine whether or not to transmit the request for the radioresource allocation to a network based on the received information.

Additional features of the invention will be set forth in part in thedescription which follows and in part will become apparent to thosehaving ordinary skill in the art upon examination of the following ormay be learned from practice of the invention. The objectives and otheradvantages of the invention may be realized and attained by thestructure particularly pointed out in the written description and claimshereof as well as the appended drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows an exemplary network structure of an E-UMTS, a mobilecommunication system for which a related art and the mobile terminal areapplied.

FIG. 2 is an exemplary structure of a control plane of a radio interfaceprotocol between a terminal and a UTRAN based on a 3GPP wireless accessnetwork specification.

FIG. 3 is an exemplary structure of a user plane of the radio interfaceprotocol between the terminal and the UTRAN based on the 3GPP wirelessaccess network specification.

FIG. 4 shows an exemplary flow diagram for controlling a radio resourceallocation in a mobile communications system according to a firstembodiment of present invention.

FIG. 5 shows an exemplary flow diagram for controlling a radio resourceallocation in a mobile communications system according to a secondembodiment of present invention.

MODE FOR THE INVENTION

One aspect of the present invention is the recognition by the presentinventors regarding the problems and drawbacks of the related artdescribed above and explained in more detail hereafter. Based upon suchrecognition, the features of the present invention have been developed.

Although the present invention is shown to be implemented in a mobilecommunication system, such as a UMTS and E-UMTS developed under 3GPPspecifications, the present invention can also be applied to othercommunication systems operating in conformity with different standardsand specifications.

FIG. 4 shows an exemplary flow diagram for controlling a radio resourceallocation in a mobile communications system according to a firstembodiment of present invention. As illustrated in FIG. 4, a network(UTRAN, Node B, eNB, etc) may transmit access control information to aterminal (i.e., UE) (S10) and the access control information may includeinformation regarding that whether or not the terminal can transmit aradio resource allocation request message to the network in uplinkdirection. Here, the access control information may transmit throughsystem information (SI), a RRC message, or a dedicated message to the UErespectively. Also, control information related with a RACH (randomaccess channel) channel may be transmitted with the access controlinformation, and the access control information may transmit via theRACH channel. Here, the access control information may also be handledor processed by a MAC (medium access control) layer or a RLC (radio linkcontrol) layer.

After receiving the access control information by the UE, if the UE hasdata that needs to be transmitted to the eNB (S11), the UE may checkwhether or not a transmission of a radio resource allocation requestmessage has been allowed by the eNB according to the received accesscontrol information. (S12). After checking step, if it is allowed, theUE may transmit the radio resource allocation request message to the eNB(S13). Otherwise, the UE may not transmit the radio resource allocationrequest message to the eNB. After receiving the radio resourceallocation request message by the eNB, the eNB may transmit the radioresource allocation message to the UE (S14), thereby allocating theradio source for transmitting an uplink data.

Here, if the eNB allows or restricts the radio resource allocationmessage without considering of a call type, a service type, a data typeby the UE, this may cause another problem. For example, if there is aparticular UE that starts to make an emergency call, an allocation ofthe radio resource for the particular UE should be performed orprocessed prior to all other UEs. Namely, any UE that needs to make theemergency call may be always allowed to transmit the radio resourceallocation message. To do this, when the eNB transmit the access controlinformation to the UE, the eNB may also notify or inform call typeinformation, service type information, priority information, or radiobearer information for transmitting the radio resource allocationmessage.

For example, among a plurality of radio bearer set within the UE, theradio bearer information may include specific information that whichradio bearer can be used to transmit the radio resource allocationrequest message. Specifically, the UE in an active state usually setwith one or more radio bearers. The radio bearer information included inthe access control information may inform the UE that a transmission ofthe radio resource allocation request message is allowed when data isreceived in which radio bearer. Therefore, when the UE receives datafrom an upper layer or entity, the UE checks which radio bearer beingused to receive the data and determine whether or not the eNB allow toreceive the radio resource allocation request message with respect tothe radio bearer. After such determination, if it is allowed, the UE maytransmit the radio resource allocation request message to the eNB,otherwise, the UE may not transmit the radio resource allocation requestmessage to the eNB.

When the UE starts to make a certain type of call or receives data froman upper entity with respect to a certain type of call that is setwithin the UE, the call type information may inform or indicate the UEthat the transmission of the radio resource allocation request messageis allowed or not. When the UE starts to initiate a certain type ofservice or receive data from the upper entity with respect to a certaintype of service that is set within the UE, the service type informationmay inform or indicate the UE that the transmission of the radioresource allocation request message is allowed or not.

For example, there are various types of call or service using by the UEsuch as a SMS (short message service), a voice call, or a video call,etc. Usually, the video call may require a large amount of the radioresource compared to the voice call. In this case, if there is ashortage of the radio resource in a cell, the eNB may allow to performthe voice call but may restrict to perform the video call, in order toprovide call services for more users. This can be said that the radioresource allocation request message may be controlled by the eNBaccording to the types of call or service. By including the call typeinformation or service type information in the access controlinformation, the eNB may inform or notify the UE that the transmissionof the radio resource allocation request message is allowed or not.

When the UE starts to make a certain type of call or receives data froman upper entity with respect to a certain type of call that is setwithin the UE, the UE may determine whether or not the transmission ofthe radio resource allocation request message is allowed or not bychecking the received access control information. Then, if it isallowed, the UE may transmit the radio resource allocation requestmessage, otherwise, the UE may not transmit the radio resourceallocation request message. When the UE starts to initiate a certaintype of service or receive data from the upper entity with respect to acertain type of service that is set within the UE, the service typeinformation may inform or indicate the UE that the transmission of theradio resource allocation request message is allowed or not. In thiscase, the access control information may also inform the UE that whattypes of call or service can be provided by the eNB. Therefore, the UEmay be able to identify the types of call or service that is supportedby the eNB in a current cell, and the UE may perform a connectionprocedure to the current cell only if those supporting types of call orservice are needed to be started.

When the UE has data to be transmitted to the eNB, the priorityinformation may inform the UE that a priority level set with the data isenough to transmit the radio resource allocation request message or not.Usually, a plurality of radio bearer is set within the UE, and the eNBmay inform the UE that the priority information for each radio bearerset within the UE. Because of this priority information, the UE maytransmit data to the eNB in the order of priority of data.

For example, for data transmitting through a signaling bearer channelthat is established to communicate messages for controlling the radioresource between the UE and eNB may need to be transmitted with a higherpriority, comparing with the those voice data through a differentchannel. If the higher priority is not set with such data, the UE maybecome disconnected mode as the UE may fails to receive a radio resourcesetting properly. Therefore, the eNB may set those radio bearers thattransmit the control message with a higher priority, and set those radiobearers that transit the voice data with a lower priority.

As such, when there is a shortage of the radio resource within one ormore cells managed by a particular eNB, the particular eNB may provide aservice based on a priority of data or radio bearer (i.e. in the orderof priority of data), and may restrict the service for data or radiobearer having lower priority. By transmitting the access controlinformation, the eNB may inform the UE whether or not the transmissionof the radio resource allocation request message is allowed. Therefore,when the UE receives data on a particular radio bearer from an upperlayer or entity, the UE checks the priority of the particular radiobearer and determine whether or not the eNB allow to receive the radioresource allocation request message with respect to the particular radiobearer. Here, the priority of the particular radio bearer may becompared to a parameter included in the access control information forsuch determination. After such determination, if it is allowed, the UEmay transmit the radio resource allocation request message to the eNB,otherwise, the UE may not transmit the radio resource allocation requestmessage to the eNB.

Specifically, the priority information may inform or notify eachpriority that is allowed to transmit the radio resource allocationrequest message, a lowest priority among a plurality of priorities thatare allowed to transmit the radio resource allocation request message,or a highest priority among a plurality of priorities that are notallowed to transmit the radio resource allocation request message. Also,during a call setup, the eNB may inform to the UE a type of radio bearerwhich can not be applied by the access control information. For example,assuming that data of a particular signaling bearer must be transmittedall the time, in this case, the eNB may allow the UE to transmit theradio resource allocation request message anytime during the call setupwhenever the UE receive the data of the particular signaling bearer.

In addition, the access control information may include the timeinformation, and the time information may inform a certain time periodthat the UE is allowed to send the radio resource allocation requestmessage. Namely, the UE may only transmit the radio resource allocationrequest message during the valid time period indicated by the timeinformation. Or, the UE may transmit the radio resource allocationrequest message anytime before or after the certain time period.

Also, if the UE is not allowed to transmit the radio resource allocationrequest message by the access control information, the UE may activate atimer having a certain setting value, after the timer is expired, the UEmay receive the access control information again. If the newly receivedaccess control information allows the UE to transmit the radio resourceallocation request message, then the UE may transmit the radio resourceallocation request message, otherwise the UE may re-activate the timeragain. Here, the timer setting value may be transmitted from the eNB tothe UE included in the access control information.

The eNB may inform the UE in case that previously transmitted accesscontrol information is changed. In such case, after such change isnotified by the eNB, the UE may receive new access control informationand may perform based on the new access control information.

FIG. 5 shows an exemplary flow diagram for controlling a radio resourceallocation in a mobile communications system according to a secondembodiment of present invention. As illustrated in FIG. 5, if the UE hasdata to be transmitted to the eNB, the UE may transmit a radio resourceallocation request message to the eNB. (21) After transmitting the radioresource allocation request message by the UE, if the UE does notreceive a radio resource allocation from the eNB within a certain timeperiod, the UE may re-transmit the radio resource allocation requestmessage assuming that the eNB did not properly receive the previouslytransmitted radio resource allocation request message.

Here, although the radio resource allocation request message issuccessfully received by the eNB, it may be possible that the eNB maynot able to allocate a radio resource to the UE due to a shortage ofavailable radio resources within a cell(s). In this case, theretransmission of the radio resource allocation request message by theUE may not be necessary and may further waste the radio resource withinthe cell(s). Therefore, after receiving the radio resource allocationrequest message, the eNB may check available or current radioresource(s) within the cell(s) (S22), then if there is the shortage ofthe radio resources within the cell(s) the eNB may transmit a radioresource allocation reject message to the UE (S23) thereby preventingthe retransmission of the radio resource allocation request message bythe UE.

Specifically, the eNB may transmit the radio resource allocation rejectmessage if the radio resource can not be allocated to the UE afterreceiving the radio resource allocation request message from the UE. TheUE may not transmit the radio resource allocation request message to theeNB again when the radio resource allocation reject message is receivedafter transmitting of the radio resource allocation request message.However, after transmitting the radio resource allocation requestmessage, the UE may retransmit the radio resource allocation requestmessage if the UE did not receive a radio resource allocation within acertain time period while the radio resource allocation reject messagehas not been received. In addition, the eNB may transmit a timeout valuefor a radio resource request when the radio resource allocationrejection message is transmitted to the UE. The timeout value mayindicate a specific time period that the UE can not possibly transmitthe radio resource allocation request message to the eNB. Namely, if theUE receives the timeout value for the radio resource request as well asthe radio resource allocation reject message, the UE may not transmitthe radio resource allocation request message until the time periodindicated by the received timeout value. After the timeout is over, theUE may retransmit the radio resource allocation request message to theeNB. (S24)

Also, the UE may start to initiate a timer having a predetermined timevalue when the radio resource allocation reject message is received fromthe eNB. After the timer is expired, the UE may retransmit the radioresource allocation request message to the eNB. Preferably, thepredetermined time value for the timer may be received with the radioresource allocation reject message or through system information.Furthermore, priority information may also be transmitted to the UE whenthe UE receives the radio resource allocation reject message. Thepriority information may include specific information for the UE totransmit or not to transmit the radio resource allocation requestmessage depending upon a priority level of data. Therefore, if thepriority level of data is higher enough to transmit the radio resourceallocation request message based upon the priority information, the UEmay then transmit the radio resource allocation request message.

Namely, the present invention provides effective way of controlling aradio resource allocation such that a waste of the radio resource can beminimized. According to the present invention, the eNB may transmitaccess control information to UE in order to control a radio resourceallocation request message. Using the access control information, atransmission of an unnecessary request for the radio resource can beminimized and the radio resources can be more effectively utilized.Also, according to the present invention, the eNB checks radio resourceswithin one or more cells, and then the eNB transmits a radio resourceallocation reject message if there are not enough radio resources. Bytransmitting the radio resource allocation reject message, atransmission of an unnecessary request for the radio resource can bealso minimized and the radio resources can be more effectively utilizedas well.

It can be said that the present invention may provide a method ofreceiving a radio resource allocation in a wireless communicationssystem, the method comprising: receiving, from a network, informationthat controls a request for the radio resource allocation by a terminal;and determining whether or not to transmit the request for the radioresource allocation to the network based on the received information,wherein the information is received via at least one of system controlinformation, a RRC message and a terminal dedicated message, theinformation is received with control information for a RACH (RandomAccess Channel) channel, the information includes at least one of radiobearer information, call type information, service type information,priority information, time information and timer setting value.

The present invention may provide a method of providing a radio resourceallocation in a wireless communications system, the method comprising:transmitting access control information to a terminal, wherein theaccess control information is used to control a request for the radioresource allocation by the terminal; receiving the request of the radioresource allocation from the terminal when the terminal is allowed totransmit the request for the radio resource allocation based on theaccess control information; and transmitting the radio resourceallocation to the terminal, wherein the access control information istransmitted through at least one of system control information, a RRCmessage and a terminal dedicated message, the access control informationincludes at least one of radio bearer information, call typeinformation, service type information, priority information, timeinformation and timer setting value, the request for radio resourceallocation is transmitted to the network using a specific radio bearerindicated by the radio bearer information, the request for radioresource allocation is transmitted to the network when at least one ofthe call type information and the service type information allows theterminal to transmit the request for radio resource allocation, therequest for radio resource allocation is transmitted to the network whena priority level of uplink data is higher than a reference levelindicated by the priority information, the request for radio resourceallocation is transmitted to the network in an order of a priority levelof uplink data indicated by the priority information, and the requestfor radio resource allocation is transmitted to the network during acertain time period indicated by the time information.

The present invention may also provide a method of allocating a radioresource in a wireless communications system, the method comprising:receiving a request for a radio resource allocation from a terminal;determining an available radio resource within one or more cells managedby a network; and transmitting a radio resource allocation rejectmessage to the terminal when the radio resource is determined to be notenough for supporting a radio resource which will be used by theterminal, wherein the radio resource allocation reject message includesat least one of a radio resource allocation request timeout, priorityinformation and a timer setting value.

Also, it can be said that the present invention may provide a mobileterminal for receiving a radio resource allocation in a wirelesscommunications system, the mobile terminal comprising: a radio protocoladapted to receive information for controlling a request for the radioresource allocation and to determine whether or not to transmit therequest for the radio resource allocation to a network based on thereceived information.

Although the present invention is described in the context of mobilecommunications, the present invention may also be used in any wirelesscommunication systems using mobile devices, such as PDAs and laptopcomputers equipped with wireless communication capabilities (i.e.interface). Moreover, the use of certain terms to describe the presentinvention is not intended to limit the scope of the present invention toa certain type of wireless communication system. The present inventionis also applicable to other wireless communication systems usingdifferent air interfaces and/or physical layers, for example, TDMA,CDMA, FDMA, WCDMA, OFDM, EV-DO, Wi-Max, Wi-Bro, etc.

The exemplary embodiments may be implemented as a method, apparatus orarticle of manufacture using standard programming and/or engineeringtechniques to produce software, firmware, hardware, or any combinationthereof. The term “article of manufacture” as used herein refers to codeor logic implemented in hardware logic (e.g., an integrated circuitchip, Field Programmable Gate Array (FPGA), Application SpecificIntegrated Circuit (ASIC), etc.) or a computer readable medium (e.g.,magnetic storage medium (e.g., hard disk drives, floppy disks, tape,etc.), optical storage (CD-ROMs, optical disks, etc.), volatile andnon-volatile memory devices (e.g., EEPROMs, ROMs, PROMs, RAMs, DRAMs,SRAMs, firmware, programmable logic, etc.).

Code in the computer readable medium may be accessed and executed by aprocessor. The code in which exemplary embodiments are implemented mayfurther be accessible through a transmission media or from a file serverover a network. In such cases, the article of manufacture in which thecode is implemented may comprise a transmission media, such as a networktransmission line, wireless transmission media, signals propagatingthrough space, radio waves, infrared signals, etc. Of course, thoseskilled in the art will recognize that many modifications may be made tothis configuration without departing from the scope of the presentinvention, and that the article of manufacture may comprise anyinformation bearing medium known in the art.

Any reference in this specification to “one embodiment,” “anembodiment,” “example embodiment,” etc., means that a particularfeature, structure, or characteristic described in connection with theembodiment is included in at least one embodiment of the invention. Theappearances of such phrases in various places in the specification arenot necessarily all referring to the same embodiment. Further, when aparticular feature, structure, or characteristic is described inconnection with any embodiment, it is submitted that it is within thepurview of one skilled in the art to effect such feature, structure, orcharacteristic in connection with other ones of the embodiments.

Although embodiments have been described with reference to a number ofillustrative embodiments thereof. It should be understood that numerousother modifications and embodiments can be devised by those skilled inthe art that will fall within the spirit and scope of the principles ofthis disclosure. More particularly, various variations and modificationsare possible in the component parts and/or arrangements of the subjectcombination arrangement within the scope of the disclosure, the drawingsand the appended claims. In addition to variations and modifications inthe component parts and/or arrangements, alternative uses will also beapparent to those skilled in the art

As the present invention may be embodied in several forms withoutdeparting from the spirit or essential characteristics thereof, itshould also be understood that the above-described embodiments are notlimited by any of the details of the foregoing description, unlessotherwise specified, but rather should be construed broadly within itsspirit and scope as defined in the appended claims, and therefore allchanges and modifications that fall within the metes and bounds of theclaims, or equivalents of such metes and bounds are therefore intendedto be embraced by the appended claims.

1-15. (canceled)
 16. A method of receiving a radio resource allocationin a wireless communications system, the method comprising: receiving,by a terminal, information from a network, wherein the informationcontrols a request for the radio resource allocation by the terminalthat is in a Radio Resource Control (RRC) connected state, wherein theinformation is received via at least one of system control information,a Radio Resource Control (RRC) message and a terminal dedicated message,and wherein the information includes time information related to atransmission of the request for the radio resource allocation; anddetermining, by the terminal, whether or not to transmit the request forthe radio resource allocation to the network based on the information.17. The method of claim 16, wherein the information further includesaccess control information controlling the request for the radioresource allocation.
 18. The method of claim 16, wherein the informationis received with control information for a RACH (Random Access Channel)channel.
 19. The method of claim 16, wherein the request for radioresource allocation is transmitted to the network using a specific radiobearer indicated by radio bearer information included in theinformation.
 20. The method of claim 16, wherein the request for radioresource allocation is transmitted to the network when at least one ofcall type information and service type information allows the terminalto transmit the request for radio resource allocation.
 21. The method ofclaim 16, wherein the request for radio resource allocation istransmitted to the network when a priority level of uplink data ishigher than a reference level indicated by priority information.
 22. Themethod of claim 16, wherein the request for the radio resourceallocation is transmitted to the network in an order of a priority levelof uplink data indicated by priority information.
 23. The method ofclaim 16, wherein the request for the radio resource allocation istransmitted to the network any time before or after a certain timeperiod indicated by the time information.
 24. The method of claim 16,wherein the transmission of the request for the radio resourceallocation is prohibited for a certain time period indicated by the timeinformation.
 25. The method of claim 24, wherein a timer is activatedfor the certain time period in order to prohibit the transmission of therequest for the radio resource allocation.
 26. The method of claim 25,wherein the certain timer is a scheduling request prohibit timer.
 27. Amethod of providing a radio resource allocation in a wirelesscommunications system, the method comprising: transmitting, by anetwork, information to a terminal, wherein the information is used tocontrol a request for the radio resource allocation which will betransmitted from the terminal, wherein the information is transmittedthrough at least one of system control information, a Radio ResourceControl (RRC) message and a terminal dedicated message, and wherein theinformation includes time information related to a transmission of therequest for the radio resource allocation by the terminal; receiving, bythe network, the request of the radio resource allocation from theterminal when the terminal is allowed to transmit the request for theradio resource allocation based on the information; and transmitting, bythe network, the radio resource allocation to the terminal.
 28. Themethod of claim 27, wherein the transmission of the request for theradio resource allocation by the terminal is prohibited for a certaintime period indicated by the time information.
 29. The method of claim28, wherein a timer is activated for the certain time period in order toprohibit the transmission of the request for the radio resourceallocation by the terminal.
 30. The method of claim 29, wherein thetimer is a scheduling request prohibit timer.
 31. A mobile terminal forreceiving a radio resource allocation in a wireless communicationssystem, the mobile terminal comprising: a radio protocol adapted toreceive information for controlling a request for the radio resourceallocation and to determine whether or not to transmit the request forthe radio resource allocation to a network based on the receivedinformation, wherein the information is received via at least one ofsystem control information, a Radio Resource Control (RRC) message and aterminal dedicated message, and wherein the information includes timeinformation related to a transmission of the request for the radioresource allocation.
 32. The mobile terminal of claim 31, wherein thetransmission of the request for the radio resource allocation isprohibited for a certain time period indicated by the time information.33. The mobile terminal of claim 32, wherein a timer is activated forthe certain time period in order to prohibit the transmission of therequest for the radio resource allocation.
 34. The mobile terminal ofclaim 33, wherein the certain timer is a scheduling request prohibittimer.